Off Road Diesel Engine

Road Machinery Diesel Engine Series

Road Machinery WP3N Diesel Engine

The Weichai WP3N is a 2.97-liter diesel engine designed for light-duty cargo trucks, offering a balance of power, fuel efficiency, and long service life. With a power output of 158.12–167.5 HP and a maximum torque of 520 Nm, it delivers strong performance with minimal fuel consumption. Its compact modular structure, low-noise design, and 800,000 km B10 life ensure reliability, comfort, and easy maintenance in demanding logistics operations.

SALIENT FEATURES

Advanced combustion design

Engines equipped with High Pressure Common Rail System (HPCRS).

Specially designed Turbo Charger

Advanced electronic control.

Integrated exhaust after treatment devices consisting Diesel Oxidation Catalysts (DOC), Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR) catalysts

Engines complaint with latest emission norms.

Cooled Engine Exhaust Gas Re-circulation.

TECHNICAL INFORMATION

Technical Information

Engine family model displacement(L) cylinder-bore×stroke
(mm)
Valve per cylinder Rated power/speed
(kW/rpm)
Max torque/speed
(N.m/rpm)
Technical route
WP3N WP3NQ140E61 2.97 4-94×107 4 103/3000 380/1400-2400 CR+EGR+DOC+DPF+SCR
WP3NQ160E61 118/3000 480/1400-2300
WP3NQ158E62 116/2800 500/1300-2200 CR+DOC+DPF+Hi-SCR
WP3NQ170E62 125/2800 520/1400-2100

FAQ- ENGINE

Weichai is your all-around engine solution for commercial purposes. It will offer a quick understanding of the brand, product, and industry.

Q. What is an on-road diesel engine?

It is a diesel engine designed for commercial road vehicles such as trucks and buses, providing strong power, fuel efficiency, and long service life for daily transport operations.

Q. Are Weichai on-road diesel engines fuel-efficient?

Yes, Weichai engines use optimized combustion, high-pressure common rail technology, and advanced ECU to deliver high mileage and lower fuel consumption.

Q. Do these engines perform well under heavy loads?

Yes, they offer high torque at low RPM, which ensures powerful pickup, smooth hill climbing, and stable performance even when fully loaded.

Q. Are Weichai diesel engines comfortable for drivers?

They feature strong NVH performance with low noise, low vibration, and better driving comfort during long-distance travel.

Q. What vehicles use Weichai on-road diesel engines?

They are widely used in cargo trucks, dump trucks, mixer trucks, intercity buses, and long-route coaches.
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